If you look at your line plot graph it shows three x’s above the 7 2/3’s number. This means there are 3 bulbs with the length 7 2/3. In order to get the total measurement you must multiply the length x the number of bulbs at that length. In this case our length is 7 2/3 and the number of bulbs at that length is 3.
With this information we know the equation should be:
7 2/3 x 3 = total length
Simplify:
7 2/3 = 23/3
3 = 3/1
We can now multiply easier.
23/3 x 3/1 =
You can cross cancel:
The denominator 3 (the 3 under the 23) divides evenly into the numerator 3 (the 3 on top of the 1). This causes the 3’s to each become 1, since 3 divides into 3, 1 time. We are now left with the problem:
23/1 x 1/1 or 23/1 x 1
23/1 = 23, so the problem is now 23 x 1 = 23
The answer is the total length of all the bulbs at 7 2/3, is 23 inches; the last answer
